chore: import upstream snapshot with attribution

dotnet/samples/Demos/VectorStoreRAG/Options/RagConfig.cs

@@ -0,0 +1,37 @@
+// Copyright (c) Microsoft. All rights reserved.
+
+using System.ComponentModel.DataAnnotations;
+
+namespace VectorStoreRAG.Options;
+
+/// <summary>
+/// Contains settings to control the RAG experience.
+/// </summary>
+internal sealed class RagConfig
+{
+    public const string ConfigSectionName = "Rag";
+
+    [Required]
+    public string AIChatService { get; set; } = string.Empty;
+
+    [Required]
+    public string AIEmbeddingService { get; set; } = string.Empty;
+
+    [Required]
+    public bool BuildCollection { get; set; } = true;
+
+    [Required]
+    public string CollectionName { get; set; } = string.Empty;
+
+    [Required]
+    public int DataLoadingBatchSize { get; set; } = 2;
+
+    [Required]
+    public int DataLoadingBetweenBatchDelayInMilliseconds { get; set; } = 0;
+
+    [Required]
+    public string[]? PdfFilePaths { get; set; }
+
+    [Required]
+    public string VectorStoreType { get; set; } = string.Empty;
+}